16212: Uses getUserDisplayName() wherever needed to show a user's name.

[arvados-workbench2.git] / src / models / tree.ts

diff --git a/src/models/tree.ts b/src/models/tree.ts
index 60a95342eedbbe6b8337f16c84ea896e6f978dcd..de2f7b71a1b6861ccd6af42e262f652d8e7d67b0 100644 (file)
--- a/src/models/tree.ts
+++ b/src/models/tree.ts
@@ -238,6 +238,9 @@ const getRootNodeChildrenIds = <T>(tree: Tree<T>) =>
 
 
 const addChild = (parentId: string, childId: string) => <T>(tree: Tree<T>): Tree<T> => {
+    if (childId === "") {
+        return tree;
+    }
     const node = getNode(parentId)(tree);
     if (node) {
         const children = node.children.some(id => id === childId)